CN115766684A - Protocol conversion gateway - Google Patents

Protocol conversion gateway Download PDF

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Publication number
CN115766684A
CN115766684A CN202111024960.8A CN202111024960A CN115766684A CN 115766684 A CN115766684 A CN 115766684A CN 202111024960 A CN202111024960 A CN 202111024960A CN 115766684 A CN115766684 A CN 115766684A
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protocol
gateway
equipment
data information
module
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李伟灿
付华坤
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Taizhou Hite Automatic Control Technology Co ltd
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Taizhou Hite Automatic Control Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses communication technical equipment, and aims to provide a protocol conversion gateway, which has the technical scheme that the protocol conversion gateway comprises a shell, a power supply module, an Ethernet module and a processor, wherein the power supply module and the processor are arranged in the shell; the actuator is used for configuring and uploading a communication protocol of the field device to the PC end; the controller is used for carrying out simulation operation at the PC end and uploading the simulation operation to the hardware protocol conversion gateway after the simulation operation is correct; the WEB server is used for associating a browser and a protocol conversion gateway, a timing access device is arranged on a sensor, a coding device is arranged on an actuator, a storage module is arranged on a controller, an industrial network card and an RS485 serial port are arranged on a shell, and a power supply module is set to be AC/DC 12-24V.

Description

Protocol conversion gateway
Technical Field
The present invention relates to a communication technology device, and more particularly, to a protocol conversion gateway.
Background
Gateway (Gateway) is also called network connector, protocol converter, gateway realizes network interconnection above network layer, is complex network interconnection equipment, only used for two different network interconnections of high layer protocol, gateway can be used for wide area network interconnection, also can be used for local area network interconnection, gateway is a computer system or equipment used as conversion important task, used between two systems with different communication protocol, data format or language, even completely different system structure, gateway is a translator, and is different from bridge simply transmitting information, gateway repackages received information to meet the demand of target system,
at present, the number and types of protocols supported by gateways in the market are small, data information is slow to arrange, equipment data information cannot be automatically updated, and the detected equipment data information cannot be maintained.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a protocol conversion gateway.
In order to achieve the purpose, the invention provides the following technical scheme: a protocol conversion gateway comprises a shell, a power supply module, an Ethernet module and a processor, wherein the power supply module, the Ethernet module and the processor are arranged in the shell, the processor comprises a sensor, an actuator, a controller and a WEB server, and the sensor is used for converting a non-standard communication protocol into an MODBUS standard communication protocol; the actuator is used for configuring and uploading a communication protocol of the field device to the PC end; the controller is used for carrying out simulation operation at the PC end and uploading the simulation operation to the hardware protocol conversion gateway after the simulation operation is correct; the WEB server is used for associating the browser and the protocol conversion gateway.
The invention is further configured to: the sensor is internally provided with X2Modbus configuration software, the X2Modbus configuration software forms a host computer model by using a mapping complex and rules, processing instruction structure operation and creating configuration of a specific protocol technology, the X2Modbus configuration software transmits the host computer model to the Ethernet module, the Ethernet module receives and stores the host computer model and converts an electric signal into data information to be transmitted to an actuator in the gateway, and the X2Modbus is used for converting a non-standard communication protocol into an MODBUS standard communication protocol.
The invention is further configured to: after an Application Program Interface (API) is created by the actuator according to an upper computer model formed by the sensor, data information adapted to the upper computer model is uploaded to the isolation module, the actuator is used for detecting and isolating the data information of the upper computer model, and the actuator is used for connecting a communication object needing to transmit information equipment and converting the communication object into an internal model according to a target technical protocol.
The invention is further configured to: the controller is used for receiving the data information in the isolation module, packaging the data information and transmitting the data information to the lower computer model, meanwhile, performing simulation operation at the PC end, uploading the data information to the hardware protocol conversion gateway after the simulation operation is error-free, the packaging is set to convert the data signal into a differential signal, and the differential signal is used for controlling the lower computer model to work.
The invention is further configured to: the WEB server comprises a WEB script virtual machine and a reading module, the WEB script virtual machine is used for constructing a WEB script, the WEB script virtual machine comprises a lexical analyzer and a syntax analyzer, and the reading module reads constructed WEB script information and is used for interconnecting a browser and a gateway.
The invention is further configured to: the sensor is provided with a timing access device, the timing access device comprises a semiconductor storage and a timing control circuit, the semiconductor storage is used for generating a timing signal, and the timing signal is used for controlling the timing control circuit to perform timing access on the device and obtain device data.
The invention is further configured to: and the actuator is provided with a coding device, and the coding device is used for formatting the original equipment data and establishing a new database after the sensor acquires the new equipment data.
The invention is further configured to: the controller is provided with a storage module which is used for storing and communicating the new database.
The invention is further configured to: the shell is provided with 2 100M/10M industrial network cards and 4 fully-isolated RS485 serial ports, the power supply module is set to be AC/DC 12-24V, the default IP address of the network port 1 is set to be 172.24.13.88, and the default IP address of the network port 2 is set to be 192.168.1.88.
A control method suitable for a protocol conversion gateway of the invention comprises the following steps:
s1, accessing equipment by timing access equipment according to timing access time set in the equipment;
s2, the sensor transmits the accessed equipment information, namely the upper computer model, to the Ethernet module, and the Ethernet module converts the electric signal into data information;
s3, the executor creates an application program interface, connects a communication object and converts an internal model according to the data information;
s4, the controller converts the data information into a differential signal to control a lower computer, simulation operation is carried out at a PC (personal computer) end, and the data information is uploaded to a hardware protocol conversion gateway;
and S5, the WEB server is associated with the Internet, the APP and the equipment, and the hardware equipment is debugged on site.
By adopting the technical scheme, modbus is the standard protocol that last support is Modbus RTU/Modbus TCP protocol, the user can dispose according to the communication protocol of site environment equipment through the WEB server, turn into the Modbus protocol of standard, can carry out the emulation operation at the PC end through the controller, when the operation is errorless back, the controller can upload data message to hardware protocol conversion gateway, X2Modbus is equivalent to a communication bridge, turn into Modbus standard communication protocol with other non-standard communication protocols, make the host computer software that supports Modbus protocol can communicate with different equipment each other through hardware protocol gateway, make things convenient for system integration, support the JS script simultaneously, realize logic control.
The timing access device arranged on the gateway sensor can regularly check the working state of the upper computer model through a preset time interval, so that the timing detection of faults is facilitated, the timely maintenance is facilitated, the actuator can optimize and arrange the data uploaded by the sensor, the data is processed and maintained, and the timely update of the data information in the gateway is guaranteed.
The gateway is green and free of installation, multi-language is supported, 200 protocols are supported to be converted into ModbusRTU and ModbusTCP servers at the same time, access such as a PC, a mobile phone end and an iPad is supported, monitoring, linear conversion, bit fetching, high-low byte conversion is supported, an internal variable function is supported, the off-line state of equipment is supported and checked, four register types of 0X, 1X, 3X and 4X are supported, configuration software X2Modbus configuration engineering is convenient, the configuration can be completed within 1024 points and 20 minutes, a new private protocol is added to support Modbus, and the configuration can be completed within 2 weeks.
Drawings
Fig. 1 is a schematic structural diagram of a protocol conversion gateway according to the present invention;
fig. 2 is a control method of a protocol conversion gateway according to the present invention.
Detailed Description
A protocol conversion gateway according to the present invention is further described with reference to fig. 1 to 2.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
Hardware parameters of a protocol translation gateway:
Figure DEST_PATH_IMAGE001
a protocol conversion gateway, the shell is an aluminum alloy shell, the aluminum alloy shell ensures the stable operation of the equipment and is not interfered by the external magnetic field, 2 100M/10M industrial network cards are arranged on the shell, a processor and a memory are arranged on the network cards, the network cards are used for packaging and unpacking data information and coding and decoding the data information, 4 full-isolation RS485 serial ports are adopted as the serial ports, an isolation and protection circuit is arranged on the RS485 serial ports, the isolation and protection circuit mainly comprises ESD protection, surge protection and lightning stroke protection, the gateway is protected by connecting a transient suppression diode, a piezoresistor and a gas discharge tube in series at the signal input end of the RS485 serial port, a Reset key is arranged on the shell and used for resetting the gateway IP, when the gateway IP is abnormally connected after conflict, the gateway IP can be Reset by the Reset key, thereby debugging the gateway again, the power supply adopts an AC/DC 12-24V power supply, the power supply comprises a 24V-to-5V voltage reduction circuit, a 5V-to-3.3V voltage reduction circuit, a power module and a 5V-to-5V isolation circuit, wherein in the 5V-to-3.3V voltage reduction circuit, a voltage input end is provided with a coupling capacitor and a filter capacitor which are used for protecting the voltage stability of the power supply, a mounting component is arranged on a shell and is fixed on the shell through screws and used for mounting and fixing a gateway, the mounting component comprises a clamping groove, a guide rail and a Reset spring, the shell is integrally designed in a full-sealing structure, can work in a temperature range of-20-70 degrees, can store and transport in a temperature range of-40-80 degrees, can work in a condensation-free range with humidity of 20-90 percent and can store and in a condensation-free range of 15-95 percent, and can furthest ensure that the gateway is not influenced by water and steam temperature during working and storing and transporting, guarantee the result of use and the stability of gateway, be provided with power indicator, system pilot lamp and serial ports pilot lamp on the casing, the pilot lamp is used for direct observation gateway work user state.
A protocol conversion gateway comprises a shell and a processor, wherein the processor comprises a sensor, an actuator, a controller and a WEB server, the sensor is used for converting a non-standard communication protocol into a MODBUS standard communication protocol, X2Modbus configuration software is arranged in the sensor, the X2Modbus configuration software forms a host computer model through configuration of using a mapping complex and rules, processing instruction structure operation and creating specific protocol technology, the X2Modbus configuration software transmits the host computer model to an Ethernet module, the Ethernet module receives and stores the host computer model and converts electric signals into data information to be transmitted to an actuator in 1024, the X2Modbus is used for converting the non-standard communication protocol into the MODBUS standard communication protocol, the X2Modbus is used for solving the problem that the configuration software such as Citect, IFIX, RSVIEW, WINCC, configuration king, and easy control directly integrates non-standard equipment, such as DDC, PLC, central air conditioner, precision air conditioner, elevator, fire fighting, light control system, ammeter, water meter and the like, modBUS is arranged in a building control automation, modBUS and the number of ModU/TCP is supported by the sensor, the TCP server, the ModBUS server is a dynamic register (the number of which can be read and can be 0), and the register can be supported by the TCP server, and the ModBUS server can be read; 1X (Input Status) is read only, and the number of Modbus registers is 1024; 4X (Holding Register) is readable and writable, and the number of Modbus registers is 1024Modbus; the 3X (Input Register) is read only, the number of the registers is 1024, the sensor is provided with a timing access device, the timing access device comprises a semiconductor memory and a timing control circuit, the semiconductor memory is used for generating timing signals, the timing signals are used for controlling the timing control circuit to carry out timing access on the device and obtain device data, the working principle of the timing access device is that access information sent by at least one target device in a field environment at preset time intervals of the semiconductor memory is received through a timer preset on the electronic device, the access information comprises but is not limited to the running state and parameters of the target device, the semiconductor memory can be an independent device preset on the field environment device or a gateway, for example, the semiconductor memory can be installed in an upper computer model or a gateway processor, the aim is to realize information interaction between the gateway and the field environment equipment, the semiconductor memory can record time and receive access information sent by at least one target device on the field environment equipment at preset time intervals of the semiconductor memory, namely one or more field environment equipment report to the semiconductor memory at preset time intervals, the semiconductor memory can consider that the configuration data of the field environment equipment is normal as long as receiving the access information, the timing control circuit is used for controlling the information access interaction time intervals which can be manually set through X2Modbus configuration software and used for ensuring that the field environment equipment is detected at regular time and the working state is normal, the timing access equipment also has an exception processing feedback function, when the semiconductor memory still does not receive the access information after exceeding the preset time period, continuous data signals can be automatically generated to carry out continuous access, and when confirming that the data information of the field environment equipment cannot be acquired, the red light of the equipment abnormality indicating lamp is on for prompting personnel that the equipment is abnormal, so that the equipment is convenient to maintain as soon as possible.
The actuator is used for configuring and uploading a communication protocol of the field equipment to a PC (personal computer) end, the actuator establishes an Application Program Interface (API) according to an upper machine model formed by a sensor and then uploads data information adapted to the upper machine model to an isolation module, the actuator is used for detecting and isolating the data information of the upper machine model and is used for connecting a communication object needing to transmit information equipment and converting the communication object into an internal model according to a target technical protocol, the actuator is provided with a coding device which is used for formatting and establishing new equipment data after the sensor acquires new equipment data, the actuator is arranged on a processor and is used for receiving an operating instruction sent by the upper machine model and analyzing the operating instruction and then applying the obtained operating instruction to the corresponding target layer API, the actuator is internally provided with a LUA script which is used for recording each target layer API and bottom layer API, the target layer API is established according to a special function possessed by the bottom layer API, the coding device is used for compiling, converting and recording the compiled and converted data information into a database, the database is used for compiling, converting and inputting the compiled and converting the converted data information into the database, the data information into the information of the field equipment, the information which can be conveniently updated when the lower level model of the equipment model accesses the equipment, and the equipment, the information can be conveniently transmitted in real-time, and the information can be stored in the communication device, and the information can be conveniently stored in the information stored in the communication device.
The controller is used for carrying out simulation operation at a PC end and uploading the simulation operation to a hardware protocol conversion gateway after error-free operation, the controller is used for receiving data information in an isolation module and transmitting the data information to a lower computer model after packaging, the packaging is set to convert the data signals into differential signals, the differential signals are used for controlling the lower computer model to work, a storage module is arranged on the controller and used for storing and communicating a new database, when simulation operation needs to be carried out at the PC end, the PC is firstly connected with a Flash storage in the gateway and then connected with an upper computer model through an RS485 serial port connecting line, then RS485 serial port communication information adjustment is carried out, after the RS485 serial port is regulated to be free of error, the running states of the gateway and the upper computer model are displayed by using the PC, real-time processor information of the gateway can be detected, the running states of chips are included, real-time processor registers in the gateway can be changed in real time through a program written in communication with the RS485 serial port, real-time change of the processor chip registers in the gateway can be realized, the working conditions of real-time reading and controlling the upper computer model can be realized, the working conditions of the remote control and the upper computer model can be configured for controlling the working condition of the PC 485 serial port, the Modbus module to finish the duplex data transmission of a data transmission control module, the Ethernet data group, the Ethernet test, the Ethernet data transmission and the Ethernet test task of the Ethernet network can be completed by the PC 485 serial port.
The WEB server is used for associating a browser and a protocol conversion gateway, the WEB server comprises a WEB script virtual machine and a reading module, the WEB script virtual machine is used for constructing a WEB script, the WEB script virtual machine comprises a lexical analyzer and a syntax analyzer, the reading module reads constructed WEB script information and is used for interconnecting the browser and the gateway, the gateway is internally provided with the WEB server, a user can check real-time changed data and communication states through the browser, field debugging is facilitated, configuration software X2Modbus and engineering files can be downloaded, various different protocols are supported and converted into Modbus protocols, a default IP address of a network port 1 is set to be 172.24.13.88, and a default IP address of a network port 2 is set to be 192.168.1.88.
A control method for a protocol conversion gateway, comprising the steps of:
s1, accessing equipment by timing access equipment according to timing access time set in the timing access equipment;
s2, the sensor transmits the accessed equipment information, namely the upper computer model, to the Ethernet module, and the Ethernet module converts the electric signal into data information;
s3, the executor creates an application program interface, connects a communication object and converts an internal model according to the data information;
s4, the controller converts the data information into a differential signal to control a lower computer, simulation operation is carried out at a PC (personal computer) end, and the data information is uploaded to a hardware protocol conversion gateway;
and S5, the WEB server associates the Internet, the APP and the equipment, and the hardware equipment is debugged on site.
In the step S1, a preset time interval is set through a semiconductor memory, a timing access signal is generated through the semiconductor memory, equipment data information is obtained after the field environment equipment is accessed, information interaction between a gateway and the field environment equipment can be realized through a timing control circuit, when the semiconductor memory does not receive access information after exceeding a preset time period, a continuous data signal is automatically generated for continuous access, and when the fact that the field environment equipment data information cannot be obtained is confirmed, an equipment abnormity indicator lamp is turned on for a long time to prompt personnel that the equipment is abnormal, so that the maintenance is convenient as soon as possible.
In the step S2, the X2Modbus configuration software is installed on the PC end, the upper computer model is transmitted to the Ethernet module through the X2Modbus configuration software, the Ethernet module receives and stores the upper computer model and converts the electric signals into data information to be transmitted to the actuator in the gateway, and the X2Modbus is used for converting the non-standard communication protocol into the MODBUS standard communication protocol.
In the step S3, the actuator is used for configuring the communication protocol of the field device and uploading the communication protocol to the PC end, the actuator uploads the data information adapted to the upper model to the isolation module after creating an Application Program Interface (API) according to the upper model formed by the sensor, the actuator is used for detecting and isolating the data information of the upper model, and the actuator is used for connecting a communication object needing to transmit information equipment and converting the communication object into an internal model according to a target technical protocol.
And step S4, the controller performs simulation operation on the PC terminal, transmits the data signal to the hardware protocol conversion gateway after the operation is correct, packages the data information and transmits the data information to the lower computer model, the package is set to convert the data signal into a differential signal, the differential signal can control a Flash memory to work, and the RS485 serial port is used for controlling the lower computer model to work.
In step S5, after the WEB server associates the browser and the protocol conversion gateway, the WEB server can perform field debugging, and in addition, can download configuration software X2Modbus and engineering files, support various different protocols to be converted into Modbus protocols at the same time, and perform lexical analysis and syntactic analysis after the WEB script virtual machine constructs a WEB script, so that the user can view real-time changed data and communication states through the browser.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should make general changes and substitutions within the technical scope of the present invention to be included in the protection scope of the present invention.

Claims (10)

1. A protocol conversion gateway, characterized by: the device comprises a shell, a power supply module, an Ethernet module and a processor, wherein the power supply module, the Ethernet module and the processor are arranged in the shell, the processor comprises a sensor, an actuator, a controller and a WEB server, and the sensor is used for converting a non-standard communication protocol into an MODBUS standard communication protocol; the actuator is used for configuring and uploading a communication protocol of the field device to the PC end; the controller is used for carrying out simulation operation at the PC end and uploading the simulation operation to the hardware protocol conversion gateway after the simulation operation is correct; the WEB server is used for associating a browser and a protocol conversion gateway.
2. A protocol translation gateway according to claim 1, wherein: the sensor is characterized in that X2Modbus configuration software is arranged in the sensor, the X2Modbus configuration software forms an upper computer model by using a mapping complex and rules, processing instruction structure operation and establishing configuration of a specific protocol technology, the X2Modbus configuration software transmits the upper computer model to an Ethernet module, the Ethernet module receives and stores the upper computer model and converts electric signals into data information to be transmitted to an actuator in the gateway, and the X2Modbus is used for converting a non-standard communication protocol into an MODBUS standard communication protocol.
3. A protocol translation gateway according to claim 2, wherein: the actuator is used for detecting and isolating the data information of the upper machine model, is used for connecting a communication object needing to transmit information equipment and is converted into an internal model according to a target technical protocol.
4. A protocol translation gateway according to claim 3, wherein: the controller is used for receiving the data information in the isolation module, packaging the data information and transmitting the data information to the lower computer model, meanwhile, carrying out simulation operation on the PC end, uploading the data information to the hardware protocol conversion gateway after the simulation operation is correct, the packaging is set to convert the data signal into a differential signal, and the differential signal is used for controlling the lower computer model to work.
5. The protocol translation gateway of claim 4, wherein: the WEB server comprises a WEB script virtual machine and a reading module, the WEB script virtual machine is used for constructing a WEB script, the WEB script virtual machine comprises a lexical analyzer and a syntax analyzer, and the reading module reads constructed WEB script information and is used for interconnecting a browser and a gateway.
6. A protocol translation gateway according to claim 2, wherein: the sensor is provided with a timing access device, the timing access device comprises a semiconductor storage and a timing control circuit, the semiconductor storage is used for generating a timing signal, and the timing signal is used for controlling the timing control circuit to perform timing access on the device and obtain device data.
7. A protocol conversion gateway according to claim 3, wherein: and the actuator is provided with a coding device, and the coding device is used for formatting the original equipment data and establishing a new database after the sensor acquires new equipment data.
8. The protocol translation gateway of claim 4, wherein: and the controller is provided with a storage module which is used for storing and communicating a new database.
9. The protocol conversion gateway of claim 5, wherein: the shell is provided with 2 100M/10M industrial network cards and 4 fully-isolated RS485 serial ports, the power module is set to be AC/DC 12-24V, the default IP address of the network port 1 is set to be 172.24.13.88, and the default IP address of the network port 2 is set to be 192.168.1.88.
10. A control method for a protocol conversion gateway according to any of claims 1 to 9, comprising the steps of:
s1, accessing equipment by timing access equipment according to timing access time set in the timing access equipment;
s2, the sensor transmits the accessed equipment information, namely the upper computer model, to the Ethernet module, and the Ethernet module converts the electric signal into data information;
s3, the executor creates an application program interface, connects a communication object and converts an internal model according to the data information;
s4, the controller converts the data information into a differential signal to control a lower computer, simulation operation is carried out at a PC (personal computer) end, and the data information is uploaded to a hardware protocol conversion gateway;
and S5, the WEB server is associated with the Internet, the APP and the equipment, and the hardware equipment is debugged on site.
CN202111024960.8A 2021-09-02 2021-09-02 Protocol conversion gateway Pending CN115766684A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2248984A1 (en) * 1996-03-22 1997-10-09 Ericsson, Inc. Protocol interface gateway
CN203445899U (en) * 2013-08-27 2014-02-19 无锡泛太科技有限公司 Embedded gateway based on Modbus and TCP/IP protocol conversion
CN103795618A (en) * 2014-02-18 2014-05-14 北京腾控科技有限公司 Communication system of intelligent device, programmable protocol gateway device and communication method thereof
CN107528836A (en) * 2017-08-10 2017-12-29 上海庄生机电工程设备有限公司 A kind of method that BACnet agreements directly enter DataBase Gateway
CN111198834A (en) * 2019-12-26 2020-05-26 山东泰物信息技术有限公司 Method for converting any serial port protocol into modbus protocol and programming-free module
CN216490542U (en) * 2021-09-02 2022-05-10 台州市海特自动控制技术有限公司 Protocol conversion gateway

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2248984A1 (en) * 1996-03-22 1997-10-09 Ericsson, Inc. Protocol interface gateway
CN203445899U (en) * 2013-08-27 2014-02-19 无锡泛太科技有限公司 Embedded gateway based on Modbus and TCP/IP protocol conversion
CN103795618A (en) * 2014-02-18 2014-05-14 北京腾控科技有限公司 Communication system of intelligent device, programmable protocol gateway device and communication method thereof
CN107528836A (en) * 2017-08-10 2017-12-29 上海庄生机电工程设备有限公司 A kind of method that BACnet agreements directly enter DataBase Gateway
CN111198834A (en) * 2019-12-26 2020-05-26 山东泰物信息技术有限公司 Method for converting any serial port protocol into modbus protocol and programming-free module
CN216490542U (en) * 2021-09-02 2022-05-10 台州市海特自动控制技术有限公司 Protocol conversion gateway

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